2691190414061 has 2 divisors, whose sum is σ = 2691190414062. Its totient is φ = 2691190414060.

The previous prime is 2691190414057. The next prime is 2691190414097. The reversal of 2691190414061 is 1604140911962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1457355984100 + 1233834429961 = 1207210^2 + 1110781^2 .

It is a cyclic number.

It is not a de Polignac number, because 2691190414061 - 2² = 2691190414057 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2691190414001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345595207030 + 1345595207031.

It is an arithmetic number, because the mean of its divisors is an integer number (1345595207031).

Almost surely, 2^{2691190414061} is an apocalyptic number.

It is an amenable number.

2691190414061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2691190414061 is an equidigital number, since it uses as much as digits as its factorization.

2691190414061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 2691190414061 in words is "two trillion, six hundred ninety-one billion, one hundred ninety million, four hundred fourteen thousand, sixty-one".